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Chemical Properties of Lead and Iridium

Lead
Iridium
Chemical Properties of Iridium and Lead


Chemical Properties
Chemical Formula
Pb   
Ir   
Isotopes
  
  
Known Isotopes
35   
4
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.87   
13
2.20   
4
Sanderson Electronegativity
2.29   
4
Not Available   
Allred Rochow Electronegativity
1.55   
11
1.55   
11
Mulliken-Jaffe Electronegativity
2.41   
2
Not Available   
Allen Electronegativity
1.85   
8
1.68   
17
Electropositivity
  
  
Pauling Electropositivity
1.67   
99+
1.80   
99+
Ionization Energies
  
  
1st Energy Level
715.60 kJ/mol   
31
880.00 kJ/mol   
9
2nd Energy Level
1,450.50 kJ/mol   
99+
1,600.00 kJ/mol   
35
3rd Energy Level
3,081.50 kJ/mol   
23
Not Available   
4th Energy Level
4,083.00 kJ/mol   
35
Not Available   
5th Energy Level
6,640.00 kJ/mol   
20
Not Available   
Electrochemical Equivalent
3.87 g/amp-hr   
9
1.14 g/amp-hr   
99+
Electron Work Function
4.25 eV   
21
4.55 eV   
13
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Flammable, Ionization, Radioactive Isotopes, Radioactivity   
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